/* http://meyerweb.com/eric/tools/css/reset/ 
   v2.0 | 20110126
   License: none (public domain)
*/
@import url('http://fonts.googleapis.com/earlyaccess/nanumgothic.css');
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
    display: block;
}
body {
    line-height: 1;
}
ol, ul {
    list-style: none;
}
blockquote, q {
    quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
    content: '';
    content: none;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}
html, body{
    margin: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    justify-content: center;
    align-items: flex-start; /* À§ÂÊ Á¤·Ä */
	display: flex; /* flex ÄÁÅ×À̳ʷΠ¼³Á¤ÇÏ¿© Áß¾Ó Á¤·Ä */
}
.landing {
    width: 500px;
    height: 500px;
    background-color: #fff;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
	z-index: 99;
}   

.ladder_canvas{
    z-index: 999;
}
.ladder{
    position: absolute;
    margin: 0px auto;
    z-index: 0;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);	
}
.node{
    width: 0px;
    height: 0px;
    background-color: #000;
}
.ladder table{
    position: absolute;
    top:2;
    left: 1;
    z-index: -99;
}
.user-wrap{
    width: 80px;
    position: absolute;
    top : -52px;
    text-align: center;
}
.user-wrap input{
    width:100%;
    height: 20px;
    text-align: center;
    border-radius:3px;
    border: 1px solid #ddd;    
}
.user-wrap button{
	margin-bottom: 5px;	
    border:0;
    width: 20px;
    height: 20px;
    border-radius: 10px;
    text-align: center;
    line-height: 20px;
    font-weight: bolder;
    color: #fff;
    cursor: pointer;
    outline: 0;
}
.answer-wrap{
        width: 80px;
        position: absolute;
        bottom : -45px;
        text-align: center;
}
.answer-wrap input{
    width:100%;
    height: 20px;
    text-align: center;
    border-radius:3px;
    border: 1px solid #ddd;
}
.answer-wrap p{
    width: 100%;
    height: 20px;
   font-weight: bold;
    font-size: 0.8em;
    line-height: 20px;
}
.title{
   margin-top: 30px;
    width: 100%;
    display: flex;
    flex-direction: column;  /* ¼¼·Î·Î ¹èÄ¡ */
    justify-content: center;
    align-items: center;	
}
#button-container {
    display: flex;
    justify-content: center;  /* ¹öÆ°µéÀ» ¼öÆò Áß¾Ó Á¤·Ä */
    gap: 10px;  /* ¹öÆ°µé °£ÀÇ °£°ÝÀ» 10px·Î ¼³Á¤ */
}
#msg_prn1 {
    text-align: center;
    width: 150px;
    height: 30px;
    line-height: 30px;
    background-color: #4CAF50;
    color: white;
    font-size: 15px;
    font-weight: 800;
    border-radius: 15px;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
}
#msg_prn1:hover {
    background-color: #45a049;  /* È£¹ö ½Ã ¹è°æ »ö»ó º¯°æ */
}
#btn1 {
    text-align: center;
    width: 30px;
    height: 30px;
    line-height: 30px;
    background-color: #4CAF50;
    color: white;
    font-size: 15px;
    font-weight: 800;
    border-radius: 15px;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
}
#btn1:hover {
    background-color: #45a049;  /* È£¹ö ½Ã ¹è°æ »ö»ó º¯°æ */
}
#btn2 {
    text-align: center;
    width: 30px;
    height: 30px;
    line-height: 30px;
    background-color: #4CAF50;
    color: white;
    font-size: 15px;
    font-weight: 800;
    border-radius: 15px;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
}
#btn2:hover {
    background-color: #45a049;  /* È£¹ö ½Ã ¹è°æ »ö»ó º¯°æ */
}
#btn3 {
    text-align: center;
    width: 50px;
    height: 30px;
    line-height: 30px;
    background-color: #4CAF50;
    color: white;
    font-size: 15px;
    font-weight: 800;
    border-radius: 15px;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
}
#btn3:hover {
    background-color: #45a049;  /* È£¹ö ½Ã ¹è°æ »ö»ó º¯°æ */
}
.start-form{
    width:300px;
    height: 400px;
    margin: 0 auto;
    text-align: center;
    position: relative;
}
.landing-form{
    position: absolute;
    top:270px;
}
.landing-form input{
    text-align: center;
    border-bottom: 1px solid #ddd;
}
.landing-form label{
    display: block;
    width: 100%;
}
.landing-form .button{
    margin-top: 10px;
    width: 300px;          /* ¹öÆ°ÀÇ ³Êºñ 300px */
    height: 50px;          /* ¹öÆ°ÀÇ ³ôÀÌ 50px */
    background-color: #FFA500; /* ÁÖȲ»ö ¹è°æ */
    border-radius: 10px;   /* ¸ð¼­¸® »ì¦ µÕ±Û°Ô (10px) */
    color: white;          /* ÅؽºÆ® »ö»óÀº Èò»ö */
    font-size: 26px;       /* ÅؽºÆ® Å©±â */
    font-weight: bold;     /* ÅؽºÆ®¸¦ ±½°Ô */
    text-align: center;    /* ÅؽºÆ® °¡·Î Áß¾Ó Á¤·Ä */
    line-height: 50px;     /* ÅؽºÆ® ¼¼·Î Áß¾Ó Á¤·Ä */
    border: none;          /* ±âº» ¹öÆ° Å׵θ® Á¦°Å */
    cursor: pointer;       /* ¸¶¿ì½º Ä¿¼­¸¦ Æ÷ÀÎÅÍ·Î º¯°æ */
    transition: background-color 0.3s ease; /* ¹è°æ»ö º¯È­¿¡ ¾Ö´Ï¸ÞÀÌ¼Ç Ãß°¡ */
}
.dim{
    width: 100%;
    height: 100%;
    /*background-color: #fff;*/
    position: absolute;
    top: 0;
    left: 0;
}